Machu Picchu
LocationPeru
Year1450
TypeCitadel
About Machu Picchu
Built at 7,970 feet above sea level. Over 150 buildings including temples, sanctuaries, and houses. 60 percent of construction is underground foundations and drainage. The stones fit so precisely no mortar is needed. Rediscovered by Hiram Bingham in 1911. The Intihuatana stone marks the equinoxes precisely.